In a medium bowl, toss together the chicken, cornstarch, turmeric, ginger, and black pepper. In a glass jar, combine the honey, soy sauce, rice vinegar, fish sauce (if using) and 1/4 cup water.Heat the oil in a large skillet over medium-high heat. Add the bell peppers, jalapeños, and shallots, cook 2-3 minutes, until the peppers are charring. Stir in the chicken, tossing to combine with the peppers, cook 2 minutes. Pour in the honey/soy sauce mix. Bring the sauce to a boil over medium-high heat and cook until the sauce coats the chicken, about 8-10 minutes. Remove from the heat and stir in the basil.Serve the chicken and sauce over bowls of coconut lemongrass rice (recipe in notes). Top with plenty of fresh basil.